uplcom.c revision 1.12
1 /* $NetBSD: uplcom.c,v 1.12 2001/03/14 15:53:01 ichiro Exp $ */ 2 /* 3 * Copyright (c) 2001 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Ichiro FUKUHARA (ichiro (at) ichiro.org). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Simple datasheet 40 * http://www.prolific.com.tw/download/DataSheet/pl2303_ds11.PDF 41 * http://www.nisseisg.co.jp/jyouhou/_cp/@gif/2303.pdf 42 * (english) 43 * 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/malloc.h> 50 #include <sys/ioctl.h> 51 #include <sys/conf.h> 52 #include <sys/tty.h> 53 #include <sys/file.h> 54 #include <sys/select.h> 55 #include <sys/proc.h> 56 #include <sys/vnode.h> 57 #include <sys/device.h> 58 #include <sys/poll.h> 59 60 #include <dev/usb/usb.h> 61 #include <dev/usb/usbcdc.h> 62 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdi_util.h> 65 #include <dev/usb/usbdevs.h> 66 #include <dev/usb/usb_quirks.h> 67 68 #include <dev/usb/usbdevs.h> 69 #include <dev/usb/ucomvar.h> 70 71 #ifdef UPLCOM_DEBUG 72 #define DPRINTFN(n, x) if (uplcomdebug > (n)) logprintf x 73 int uplcomdebug = 0; 74 #else 75 #define DPRINTFN(n, x) 76 #endif 77 #define DPRINTF(x) DPRINTFN(0, x) 78 79 #define UPLCOM_CONFIG_INDEX 0 80 #define UPLCOM_IFACE_INDEX 0 81 #define UPLCOM_SECOND_IFACE_INDEX 1 82 #define UPLCOM_RESET 0 83 84 #define RSAQ_STATUS_DSR 0x02 85 #define RSAQ_STATUS_DCD 0x01 86 87 struct uplcom_softc { 88 USBBASEDEVICE sc_dev; /* base device */ 89 usbd_device_handle sc_udev; /* USB device */ 90 usbd_interface_handle sc_iface; /* first interface */ 91 usbd_interface_handle sc_sec_iface; /* second interface */ 92 int sc_iface_number; /* interface number */ 93 94 int sc_intr_number; /* interrupt number */ 95 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ 96 u_char *sc_intr_buf; /* interrupt buffer */ 97 int sc_isize; 98 99 usb_cdc_line_state_t sc_line_state; /* current line state */ 100 u_char sc_dtr; /* current DTR state */ 101 u_char sc_rts; /* current RTS state */ 102 u_char sc_status; 103 104 device_ptr_t sc_subdev; /* ucom device */ 105 106 u_char sc_dying; 107 108 u_char sc_lsr; /* Local status register */ 109 u_char sc_msr; /* uplcom status register */ 110 }; 111 112 /* 113 * These are the maximum number of bytes transferred per frame. 114 * The output buffer size cannot be increased due to the size encoding. 115 */ 116 #define UPLCOMIBUFSIZE 256 117 #define UPLCOMOBUFSIZE 256 118 119 Static usbd_status uplcom_reset(struct uplcom_softc *); 120 Static usbd_status uplcom_set_line_coding(struct uplcom_softc *sc, 121 usb_cdc_line_state_t *state); 122 Static void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 123 124 Static void uplcom_set(void *, int, int, int); 125 Static void uplcom_dtr(struct uplcom_softc *, int); 126 Static void uplcom_rts(struct uplcom_softc *, int); 127 Static void uplcom_break(struct uplcom_softc *, int); 128 Static void uplcom_set_line_state(struct uplcom_softc *); 129 Static void uplcom_get_status(void *, int portno, u_char *lsr, u_char *msr); 130 #if TODO 131 Static int uplcom_ioctl(void *, int, u_long, caddr_t, int, struct proc *); 132 #endif 133 Static int uplcom_param(void *, int, struct termios *); 134 Static int uplcom_open(void *, int); 135 Static void uplcom_close(void *, int); 136 137 struct ucom_methods uplcom_methods = { 138 uplcom_get_status, 139 uplcom_set, 140 uplcom_param, 141 NULL, /* uplcom_ioctl, TODO */ 142 uplcom_open, 143 uplcom_close, 144 NULL, 145 NULL, 146 }; 147 148 static const struct uplcom_product { 149 uint16_t vendor; 150 uint16_t product; 151 } uplcom_products [] = { 152 /* I/O DATA USB-RSAQ2 */ 153 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 }, 154 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ }, 155 156 { 0, 0 } 157 }; 158 159 USB_DECLARE_DRIVER(uplcom); 160 161 USB_MATCH(uplcom) 162 { 163 USB_MATCH_START(uplcom, uaa); 164 int i; 165 166 if (uaa->iface != NULL) 167 return (UMATCH_NONE); 168 169 for (i = 0; uplcom_products[i].vendor != 0; i++) { 170 if (uplcom_products[i].vendor == uaa->vendor && 171 uplcom_products[i].product == uaa->product) { 172 return (UMATCH_VENDOR_PRODUCT); 173 } 174 } 175 return (UMATCH_NONE); 176 } 177 178 USB_ATTACH(uplcom) 179 { 180 USB_ATTACH_START(uplcom, sc, uaa); 181 usbd_device_handle dev = uaa->device; 182 usb_config_descriptor_t *cdesc; 183 usb_interface_descriptor_t *id; 184 usb_endpoint_descriptor_t *ed; 185 186 char devinfo[1024]; 187 char *devname = USBDEVNAME(sc->sc_dev); 188 usbd_status err; 189 int i; 190 struct ucom_attach_args uca; 191 192 usbd_devinfo(dev, 0, devinfo); 193 USB_ATTACH_SETUP; 194 printf("%s: %s\n", devname, devinfo); 195 196 sc->sc_udev = dev; 197 198 DPRINTF(("\n\nuplcom attach: sc=%p\n", sc)); 199 200 /* Move the device into the configured state. */ 201 err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1); 202 if (err) { 203 printf("\n%s: failed to set configuration, err=%s\n", 204 devname, usbd_errstr(err)); 205 USB_ATTACH_ERROR_RETURN; 206 } 207 208 /* get the config descriptor */ 209 cdesc = usbd_get_config_descriptor(sc->sc_udev); 210 211 if (cdesc == NULL) { 212 printf("%s: failed to get configuration descriptor\n", 213 USBDEVNAME(sc->sc_dev)); 214 USB_ATTACH_ERROR_RETURN; 215 } 216 217 /* get the (first) interface */ 218 err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX, 219 &sc->sc_iface); 220 if (err) { 221 printf("\n%s: failed to get interface, err=%s\n", 222 devname, usbd_errstr(err)); 223 USB_ATTACH_ERROR_RETURN; 224 } 225 /* 226 * check second interface 227 * USB-RSAQ has two interface 228 */ 229 if (cdesc->bNumInterface == 2) { 230 err = usbd_device2interface_handle(dev, 231 UPLCOM_SECOND_IFACE_INDEX, &sc->sc_sec_iface); 232 if (err) { 233 printf("\n%s: failed to get second interface, err=%s\n", 234 devname, usbd_errstr(err)); 235 USB_ATTACH_ERROR_RETURN; 236 } 237 sc->sc_iface = sc->sc_sec_iface; 238 } 239 240 /* Find the bulk endpoints */ 241 242 id = usbd_get_interface_descriptor(sc->sc_iface); 243 sc->sc_iface_number = id->bInterfaceNumber; 244 245 uca.bulkin = uca.bulkout = -1; 246 sc->sc_intr_number = -1; 247 sc->sc_intr_pipe = NULL; 248 for (i = 0; i < id->bNumEndpoints; i++) { 249 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 250 if (ed == NULL) { 251 printf("%s: no endpoint descriptor for %d\n", 252 USBDEVNAME(sc->sc_dev), i); 253 USB_ATTACH_ERROR_RETURN; 254 } 255 256 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 257 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 258 uca.bulkin = ed->bEndpointAddress; 259 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 260 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 261 sc->sc_intr_number = ed->bEndpointAddress; 262 sc->sc_isize = UGETW(ed->wMaxPacketSize); 263 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 264 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 265 uca.bulkout = ed->bEndpointAddress; 266 } 267 } 268 269 if (uca.bulkin == -1) { 270 printf("%s: Could not find data bulk in\n", 271 USBDEVNAME(sc->sc_dev)); 272 USB_ATTACH_ERROR_RETURN; 273 } 274 275 if (uca.bulkout == -1) { 276 printf("%s: Could not find data bulk out\n", 277 USBDEVNAME(sc->sc_dev)); 278 USB_ATTACH_ERROR_RETURN; 279 } 280 281 if (sc->sc_intr_number== -1) { 282 printf("%s: Could not find interrupt in\n", 283 USBDEVNAME(sc->sc_dev)); 284 USB_ATTACH_ERROR_RETURN; 285 } 286 287 sc->sc_dtr = sc->sc_rts = -1; 288 uca.portno = UCOM_UNK_PORTNO; 289 /* bulkin, bulkout set above */ 290 uca.ibufsize = UPLCOMIBUFSIZE; 291 uca.obufsize = UPLCOMOBUFSIZE; 292 uca.ibufsizepad = UPLCOMIBUFSIZE; 293 uca.opkthdrlen = 0; 294 uca.device = dev; 295 uca.iface = sc->sc_iface; 296 uca.methods = &uplcom_methods; 297 uca.arg = sc; 298 uca.info = NULL; 299 300 err = uplcom_reset(sc); 301 302 if (err) { 303 printf("%s: reset failed, %s\n", USBDEVNAME(sc->sc_dev), 304 usbd_errstr(err)); 305 USB_ATTACH_ERROR_RETURN; 306 } 307 308 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 309 USBDEV(sc->sc_dev)); 310 311 DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n", 312 uca.bulkin, uca.bulkout, sc->sc_intr_number )); 313 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 314 315 USB_ATTACH_SUCCESS_RETURN; 316 } 317 318 USB_DETACH(uplcom) 319 { 320 USB_DETACH_START(uplcom, sc); 321 int rv = 0; 322 323 DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags)); 324 325 if (sc->sc_intr_pipe != NULL) { 326 usbd_abort_pipe(sc->sc_intr_pipe); 327 usbd_close_pipe(sc->sc_intr_pipe); 328 free(sc->sc_intr_buf, M_USBDEV); 329 sc->sc_intr_pipe = NULL; 330 } 331 332 sc->sc_dying = 1; 333 if (sc->sc_subdev != NULL) { 334 rv = config_detach(sc->sc_subdev, flags); 335 sc->sc_subdev = NULL; 336 } 337 338 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 339 USBDEV(sc->sc_dev)); 340 341 return (rv); 342 } 343 344 int 345 uplcom_activate(device_ptr_t self, enum devact act) 346 { 347 struct uplcom_softc *sc = (struct uplcom_softc *)self; 348 int rv = 0; 349 350 switch (act) { 351 case DVACT_ACTIVATE: 352 return (EOPNOTSUPP); 353 break; 354 355 case DVACT_DEACTIVATE: 356 if (sc->sc_subdev != NULL) 357 rv = config_deactivate(sc->sc_subdev); 358 sc->sc_dying = 1; 359 break; 360 } 361 return (rv); 362 } 363 364 365 usbd_status 366 uplcom_reset(struct uplcom_softc *sc) 367 { 368 usb_device_request_t req; 369 usbd_status err; 370 371 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 372 req.bRequest = UPLCOM_RESET; 373 USETW(req.wValue, UPLCOM_RESET); 374 USETW(req.wIndex, sc->sc_iface_number); 375 USETW(req.wLength, 0); 376 377 err = usbd_do_request(sc->sc_udev, &req, 0); 378 if (err) 379 return (EIO); 380 381 return (0); 382 } 383 384 void 385 uplcom_set_line_state(struct uplcom_softc *sc) 386 { 387 usb_device_request_t req; 388 int ls; 389 390 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 391 (sc->sc_rts ? UCDC_LINE_RTS : 0); 392 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 393 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 394 USETW(req.wValue, ls); 395 USETW(req.wIndex, sc->sc_iface_number); 396 USETW(req.wLength, 0); 397 398 (void)usbd_do_request(sc->sc_udev, &req, 0); 399 400 } 401 402 void 403 uplcom_set(void *addr, int portno, int reg, int onoff) 404 { 405 struct uplcom_softc *sc = addr; 406 407 switch (reg) { 408 case UCOM_SET_DTR: 409 uplcom_dtr(sc, onoff); 410 break; 411 case UCOM_SET_RTS: 412 uplcom_rts(sc, onoff); 413 break; 414 case UCOM_SET_BREAK: 415 uplcom_break(sc, onoff); 416 break; 417 default: 418 break; 419 } 420 } 421 422 void 423 uplcom_dtr(struct uplcom_softc *sc, int onoff) 424 { 425 426 DPRINTF(("uplcom_dtr: onoff=%d\n", onoff)); 427 428 if (sc->sc_dtr == onoff) 429 return; 430 sc->sc_dtr = onoff; 431 432 uplcom_set_line_state(sc); 433 } 434 435 void 436 uplcom_rts(struct uplcom_softc *sc, int onoff) 437 { 438 DPRINTF(("uplcom_rts: onoff=%d\n", onoff)); 439 440 if (sc->sc_rts == onoff) 441 return; 442 sc->sc_rts = onoff; 443 444 uplcom_set_line_state(sc); 445 } 446 447 void 448 uplcom_break(struct uplcom_softc *sc, int onoff) 449 { 450 usb_device_request_t req; 451 452 DPRINTF(("uplcom_break: onoff=%d\n", onoff)); 453 454 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 455 req.bRequest = UCDC_SEND_BREAK; 456 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 457 USETW(req.wIndex, sc->sc_iface_number); 458 USETW(req.wLength, 0); 459 460 (void)usbd_do_request(sc->sc_udev, &req, 0); 461 } 462 463 usbd_status 464 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state) 465 { 466 usb_device_request_t req; 467 usbd_status err; 468 469 DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 470 UGETDW(state->dwDTERate), state->bCharFormat, 471 state->bParityType, state->bDataBits)); 472 473 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 474 DPRINTF(("uplcom_set_line_coding: already set\n")); 475 return (USBD_NORMAL_COMPLETION); 476 } 477 478 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 479 req.bRequest = UCDC_SET_LINE_CODING; 480 USETW(req.wValue, 0); 481 USETW(req.wIndex, sc->sc_iface_number); 482 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 483 484 err = usbd_do_request(sc->sc_udev, &req, state); 485 if (err) { 486 DPRINTF(("uplcom_set_line_coding: failed, err=%s\n", 487 usbd_errstr(err))); 488 return (err); 489 } 490 491 sc->sc_line_state = *state; 492 493 return (USBD_NORMAL_COMPLETION); 494 } 495 496 int 497 uplcom_param(void *addr, int portno, struct termios *t) 498 { 499 struct uplcom_softc *sc = addr; 500 usbd_status err; 501 usb_cdc_line_state_t ls; 502 503 DPRINTF(("uplcom_param: sc=%p\n", sc)); 504 505 USETDW(ls.dwDTERate, t->c_ospeed); 506 if (ISSET(t->c_cflag, CSTOPB)) 507 ls.bCharFormat = UCDC_STOP_BIT_2; 508 else 509 ls.bCharFormat = UCDC_STOP_BIT_1; 510 if (ISSET(t->c_cflag, PARENB)) { 511 if (ISSET(t->c_cflag, PARODD)) 512 ls.bParityType = UCDC_PARITY_ODD; 513 else 514 ls.bParityType = UCDC_PARITY_EVEN; 515 } else 516 ls.bParityType = UCDC_PARITY_NONE; 517 switch (ISSET(t->c_cflag, CSIZE)) { 518 case CS5: 519 ls.bDataBits = 5; 520 break; 521 case CS6: 522 ls.bDataBits = 6; 523 break; 524 case CS7: 525 ls.bDataBits = 7; 526 break; 527 case CS8: 528 ls.bDataBits = 8; 529 break; 530 } 531 532 err = uplcom_set_line_coding(sc, &ls); 533 if (err) { 534 DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); 535 return (EIO); 536 } 537 return (0); 538 } 539 540 int 541 uplcom_open(void *addr, int portno) 542 { 543 struct uplcom_softc *sc = addr; 544 int err; 545 546 if (sc->sc_dying) 547 return (EIO); 548 549 DPRINTF(("uplcom_open: sc=%p\n", sc)); 550 551 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) { 552 sc->sc_status = 0; /* clear status bit */ 553 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 554 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 555 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, 556 sc->sc_intr_buf, sc->sc_isize, 557 uplcom_intr, USBD_DEFAULT_INTERVAL); 558 if (err) { 559 DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n", 560 USBDEVNAME(sc->sc_dev), sc->sc_intr_number)); 561 return (EIO); 562 } 563 } 564 565 return (0); 566 } 567 568 void 569 uplcom_close(void *addr, int portno) 570 { 571 struct uplcom_softc *sc = addr; 572 int err; 573 574 if (sc->sc_dying) 575 return; 576 577 DPRINTF(("uplcom_close: close\n")); 578 579 if (sc->sc_intr_pipe != NULL) { 580 err = usbd_abort_pipe(sc->sc_intr_pipe); 581 if (err) 582 printf("%s: abort interrupt pipe failed: %s\n", 583 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 584 err = usbd_close_pipe(sc->sc_intr_pipe); 585 if (err) 586 printf("%s: close interrupt pipe failed: %s\n", 587 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 588 free(sc->sc_intr_buf, M_USBDEV); 589 sc->sc_intr_pipe = NULL; 590 } 591 } 592 593 void 594 uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 595 { 596 struct uplcom_softc *sc = priv; 597 u_char *buf = sc->sc_intr_buf; 598 u_char pstatus; 599 600 if (sc->sc_dying) 601 return; 602 603 if (status != USBD_NORMAL_COMPLETION) { 604 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 605 return; 606 607 DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev), 608 usbd_errstr(status))); 609 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 610 return; 611 } 612 613 DPRINTF(("%s: uplcom status = %02x\n", USBDEVNAME(sc->sc_dev), buf[8])); 614 615 sc->sc_lsr = sc->sc_msr = 0; 616 pstatus = buf[8]; 617 if (ISSET(pstatus, RSAQ_STATUS_DSR)) 618 sc->sc_msr |= UMSR_DSR; 619 if (ISSET(pstatus, RSAQ_STATUS_DCD)) 620 sc->sc_msr |= UMSR_DCD; 621 ucom_status_change((struct ucom_softc *) sc->sc_subdev); 622 } 623 624 void 625 uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr) 626 { 627 struct uplcom_softc *sc = addr; 628 629 DPRINTF(("uplcom_get_status:\n")); 630 631 if (lsr != NULL) 632 *lsr = sc->sc_lsr; 633 if (msr != NULL) 634 *msr = sc->sc_msr; 635 } 636 637 #if TODO 638 int 639 uplcom_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag, 640 struct proc *p) 641 { 642 struct uplcom_softc *sc = addr; 643 int error = 0; 644 645 if (sc->sc_dying) 646 return (EIO); 647 648 DPRINTF(("uplcom_ioctl: cmd=0x%08lx\n", cmd)); 649 650 switch (cmd) { 651 case TIOCNOTTY: 652 case TIOCMGET: 653 case TIOCMSET: 654 case USB_GET_CM_OVER_DATA: 655 case USB_SET_CM_OVER_DATA: 656 break; 657 658 default: 659 DPRINTF(("uplcom_ioctl: unknown\n")); 660 error = ENOTTY; 661 break; 662 } 663 664 return (error); 665 } 666 #endif 667
Indexes created Fri Sep 26 20:09:58 GMT 2025